Sony Reader has been one of the top brands of digital reading devices since 2006, and are among the most popular and widely accessible ebook readers on the market.
Sony's ereaders support Adobe Digital Editions for encrypted EPUB and PDF ebooks, and Sony just transitioned their entire library of ebooks to EPUB format. This greatly increases the openness of their products and gives users more access to sources for content.
Sony's new family of ebook readers . . .

On August 25th Sony announced a third reader, the PRS-900 Daily Edition, to their new line of electronic reading devices.
The PRS-900 is now available for purchase in the United States, and is Sony's first wireless ebook reader.
It has free 3G wireless connectivity to Sony's Reader Store, a touchscreen, a 7.1-inch display, and sports some additional new features over earlier models.
For one, you can have digital newspapers automatically delivered to the Reader via wireless each morning, hence the name "Daily Edition".
Sony PRS-900 Daily Edition Review
The PRS-600 has a 6-inch touchscreen display for quick navigation using either a stylus or your fingers.
The touchscreen is handy for taking freehand notes, highlighting text, using the built-in dictionary, and for zooming and panning while reading PDFs.
The one drawback is that the touch layer somewhat decreases the clarity of the text.
It also has a virtual keyboard for entering notes and searches. Notes can be referenced with bookmarks, and can be exported to a computer.
Dubbed the "Pocket Edition", the PRS-300 is the smallest Sony eBook Reader to date.
It is 6.2" x 4.2" x .4" and weighs just 7.76 ounces. The epaper screen measures 5-inches diagonally.
The PRS-300 is also one of the lowest priced E Ink ebook readers yet, and can often be found new for as low as $175(US), £139(UK), $239(CA).
The Pocket Edition is small enough to fit in a purse or jacket pocket, and can hold about 350 ebooks.
Sony PRS-300 Pocket Edition Review

By embracing the open standard EPUB format, Sony's ereaders can read encrypted ebooks from a number of online ebook retailers. Check our dedicated Sony eBook Page for a comprehensive listing of current content providers.

Click here to read about Sony's older ebook readers.